NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Improvements in surface singularity analysis and design methodsThe coupling of the combined source vortex distribution of Green's potential flow function with contemporary numerical techniques is shown to provide accurate, efficient, and stable solutions to subsonic inviscid analysis and design problems for multi-element airfoils. The analysis problem is solved by direct calculation of the surface singularity distribution required to satisfy the flow tangency boundary condition. The design or inverse problem is solved by an iteration process. In this process, the geometry and the associated pressure distribution are iterated until the pressure distribution most nearly corresponding to the prescribed design distribution is obtained. Typically, five iteration cycles are required for convergence. A description of the analysis and design method is presented, along with supporting examples.
Document ID
19790011872
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bristow, D. R. (McDonnell Aircraft Co. Saint Louis, MO, United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1979
Publication Information
Publication: NASA. Langley Res. Center Advanced Technol. Airfoil Res., Vol. 1, Pt. 1
Subject Category
Aerodynamics
Accession Number
79N20043
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

IDRelationTitle19790011859Collected WorksAdvanced Technology Airfoil Research, volume 1, part 1
No Preview Available